Bug#994182: headset functionality broken after recent update

[arne anka]

Switched to pipewire as per Wiki, problem persists.
In headset mode, both output and input are muted and there's no way to 
change that -- output and input appear as working devices though, but 
only silence is recorded and played.

After some research it seems to do with a change to the bluetooth 
handling in the kernel and affects a lot of people.